And william l



(No Model.)

J. & W. L. HEBERLING.

SEWING MACHINE SHUTTLE.

No. 311,490. Patented Feb. 8, 188 5" A N, Pun-Rs. Pnuwunm hm Washmglon. D. c.

JOHN HEIEERLING, OF CLEVELAND, OHIO, AND \VILLIAM L. HEBERLING,

or BATH,

ILLINOIS.

SEWlNG-IWACl-HNE SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 311,490, dated February 3, 1885.-

Applieation filed April 29, 1884.

T0 at whom it may concern.-

Be it known that we, JOHN HEBERLING, of Cleveland, Ohio, and WILLIAM L. Hanna- LING, of Bath, Mason county, Illinois, citi zens of the 'United States, have invented certain new and useful Improvements in Sewing- Machine Shuttles, of which the following is a specification, reference being had therein to the accompanying drawings.

Our invention relates to that class of sewing-machine shuttles which are intended, when in operation, to have a continuous or reciproeating rotary movement, and which are provided with what'are known as disk bobbins, carried in bobbin-cases which remain sta tionary while the shuttles rotate.

The principal object of our invention is to produce shuttles of the class above referred to of such construction that they will be as light as possible consistent with proper strength and stiffness, and will have a larger threadearrying capacity in proportion to the size of the loops of' needle-thread required to pass around them than those heretofore in use, while they maybe more cheaply manufactured than similar shuttles heretofore made.

In the accompanying drawings, Figure 1 is a perspective view of the shell ofour improved shuttle. Figs. 2 and 3 are front and rear views, respectively, of the same, Fig. 2 showing the bobbin-ease in position. Fig. 4: is a sectional view on the line 4 4, Fig. 2, of the shuttleshell, bobbin-case; and bobbin. Fig. 5 is a perspective view of a modified form of our shuttle. Figs. 6, 7, 8, and 9 are detail views of the bobbin-case and its tension device.

A is the body of our shuttle, said body consisting of a metallic dish-formed shell open on its face and haying a peripheral flange, a, adapted to run in the raceway of the machine, a portion of the said flange being formed into a hook, I), for seizing the loops of needle thread. The shell A is recessed or cut away on one edge or side at B, as shown, to lessen its weight and also to enable it to pass through smaller loops of needle-thread than it otherwise would. This cut-away portion is what is known as the loop-passage.

Formed integral with or suitably secured to the shell A, preferably centrally of its axis of (No modeLi rotation, is a pin, 0, on which loosely fits a sleeve, d, centrally fixed to'the bobbin-case D, and on said sleeve is loosely fitted the diskbobbin 0, said pin thus serving to support said bobbincase and bobbin. To enable the bobbin to carry as much thread as possible, it is made to fill a bobbin-case having a depth about twice that of the shuttle-shell A, and a diameter snt'ficiently great to extend its periphery to the loop-passage B of the said shell. In other words, the flattened space a in the center of the shuttle which is occupied by the bobbin and its case, and which we term the bobbin-space, extends out to the looppassage B. In the operation of sewing it is necessary for the shuttle to pass through loops of the needle-thread, as indicated in Figs. 2 and 3, in which said loops are indicated by the dotted lines 1/. In our shuttle there is no extension of the shuttleshell on the loop-passage side thereof beyond the periphery of the bobbin-case, and hence it follows that our shuttle may have a bobbin of a larger size radially than those heretofore in use, without requiring a larger loop of needle-thread, or, conversely, may pass through a smaller loop of needle-thread than is required for the old shuttles and still carry as large a bobbin as has heretofore been used.

Owing to the depth or thickness of the loob 8o bin and bobbin-case, they both extend some distance beyond the face of the shu'ttleshell proper, so that the peripheral flange a,which engages the shuttle-race,and which also serves to divide the loops of needlethread, comes about midway laterally of said bobbin and case. To hold the loops of needlethread clear of the latter, an inclined guard, E, is attached to the face side of the shuttle-shell rearward of the hook I). This guard is preferably comparatively short, as shown in Figs. 1 and 2; but it may be extended about half-way around the shuttle, as shown in Fig. 5, if desired.

From the structure above described it will be clear that our shuttle-shell will be comparatively light in proportion to its strength,which will be sufficient to avoid that springing to which some of the skeleton rotary shuttles heretofore in use are liable, and as the body of the shuttle consists. of a comparatively plain 100 dish-formed shell,which may be readily dropforged. or stamped out of thin metal,it is obvious that it may be much more cheaply manufactured than similar rotary shuttles heretofore in use.

Our bobbin-case D is provided with a threadslot, d, extending partially across its flanged periphery, and joining a groove, 0?, leading into a V-shaped thread-slot, e, in a rigid arm, E, attached to or formed integral with the bobbin-case, said slot forming athread-finger, e. The arm E is provided with a guard, 6 for holding the loops of needle-thread away from the tension-spring and its regulatingscrew,and also the thread-finger in said spring, said guard 6 having near its top a slot, e A tension-spring, E having a thread-slot, f, is attached to the arm E by a screw, f,by which the stress of said spring can be regulated. The slotf forms a thread-finger, f, the point of which is turned slightly outwardfrom the face of the arm E.

The bobbin being placed on the sleeve cl of the bobbin-case,its thread may be drawn into the slot d, groove d, and slot 6, thence across the outer face of the tension-spring E into the slot 6, to enable it to be brought beneath the finger f After it has been drawn beneath said finger it will be pulled upward or in the direction of the length of the arm E, and will thus be placed between the outer end of the tension-spring and the face of said arm, where it will receive the requisite friction to give it the proper tension as it passes upward to the fabric.

It will be understood that the rigid arm E will engage some suitable stationary part of machine, beneath the work-plate, to hold the bobbin-case stationary as the shuttle rotates. The bobbin-case may be retained on the pin a by an eccentric-headed screw, 9, as shown, or a suitable latch may be used as a retaining device for said case.

Ve have shown our shuttle as being provided with slots or recesses a, which are intended to be alternately engaged by horns of a rotary driver.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. A sewing-machineshuttle-shell cut away on one side to form a loop-passage, and having a bobbin-space extending to said loop-passage, aud a pin centrally arranged in said bobbin space, combined with a bobbin-case loosely journaled on said pin, and having its periphery extending to the edge of said shuttle-shell at said loop-passage, and a bobbin arranged within said bobbin case, substantially as set forth.

2. An outwardly-flaring dislrformed sewing-machine shuttle-shell, having anopen face and a peripheral flange, the latter provided with a point or hook, combined with a bobbin-case and bobbin, both of greater depth or thickness than the body of said shuttle-shell,

and an inclined guard on the face or outer side of said shell rearward of said hook, for keeping the loops of needle-thread clear of the said bobbin-case,substantially as set forth.

3; The combination, with the shuttle-shell A, having pin 0, of the bobbin 0 and bobbincase D, the latter having a slot, (1, and groove d rigid arm E, having V-shaped slot 6, into which said groove leads, guard 6 having slot 6, and the tension-spring E attached to said arm, and having the thread-fingerf substantial] y as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

JOHN HEBERLING. WILLIAM L. HEBEELING.

Witnesses:

FLAMEN BALL, J r., ALFRED G. SHAW. 

